The monthly salaries in rupees of $30$ workers in a factory are given below.

$5000, 7000, 3000, 4000, 4000, 3000, 3000, 3000, 8000, 4000, 4000, 9000, 3000, 5000, 5000, 4000, 4000, 3000, 5000, 5000, 6000, 8000, 3000, 3000, 6000, 7000, 7000, 6000, 6000, 4000$

From the above data find the mean of monthly salary.

In a basket there are $10$ tomatoes. The weight of each of these tomatoes in grams is as follows $60, 70, 90, 95, 50, 65, 70, 80, 85, 95$.

Find the median of the weights of tomatoes.

A hockey player has scored following number of goals in $9$ matches.

$5, 4, 0, 2, 2, 4, 4, 3, 3$.

Find the mean, median and mode of the data.

Following $10$ observations are arranged in ascending order as follows.

$2, 3, 5, 9, x + 1, x + 3, 14, 16, 19, 20$

If the median of the data is $11$, find the value of $x$.

The weights of $10$ students (in kg) are given below :

$40, 35, 42, 43, 37, 35, 37, 37, 42, 37$

Find the mode of the data in kg.

In the following table, the information is given about the number of families and the siblings in the families less than 14 years of age. Find the mode of the data.